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Title: Ionic Liquid Platform for Spinning Composite Chitin–Poly(lactic acid) Fibers

Abstract

In the design of stronger chitin fibers reinforced with poly(lactic acid) (PLA), during this work, an ionic-liquid-based (IL-based) approach was developed in which both polymers were codissolved in an 1-ethyl-3-methylimidazolium acetate ([C 2mim][OAc]) and wet-jet spun into composite fibers. Chitin, directly extracted from shrimp shell, had a solubility in the IL of 2.75 wt %, while PLA of MW 700 000 g/mol had a solubility of 49 wt %. Keeping the IL saturated in chitin, homogeneous solutions of chitin and PLA could be obtained up to 27 wt % (relative to the IL) PLA. Spinning dopes were prepared by maintaining the chitin concentration relative to the IL at 1.75 wt % and adding PLA in chitin to PLA weight ratios of 1:0.1 through 1:1 (PLA concentrations of 0.175–1.75 wt % relative to the IL). Homogeneous chitin/PLA fibers could be spun when the chitin to PLA ratio was between 1:0.1 and 1:0.3. The tensile strength and plasticity of the fibers depended on the chitin to PLA ratio with the highest plasticity (8.8% vs 3.0% for pure chitin fibers), strength (112 vs 71 MPa), and stiffness (5.9 vs 4.2 GPa) observed for fibers with a chitin to PLA ratio of 1:0.3. Studiesmore » of the fracturing surface of the fibers indicated that fracturing occurred through an initial disruption of the interactions between polymer chains, followed by complete fiber breakage. The work not only demonstrates that homogeneous composite fibers can be spun using a biopolymer and PLA additive, but also suggests a versatile platform for preparation of multiple biopolymer–PLA materials using solution processing methods.« less

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3];  [2]; ORCiD logo [2]; ORCiD logo [4]
  1. Mari Signum, Mid-Atlantic, Rockville, MD (United States)
  2. Univ. of Alabama, Tuscaloosa, AL (United States)
  3. Univ. of Calgary, Alberta (Canada). Chemical and Petroleum Engineering Dept.
  4. Univ. of Alabama, Tuscaloosa, AL (United States); 525 Solutions, Inc., Tuscaloosa, AL (United States)
Publication Date:
Research Org.:
Univ. of Alabama, Tuscaloosa, AL (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE); USDOE Office of Science (SC)
OSTI Identifier:
1592738
Alternate Identifier(s):
OSTI ID: 1592740
Grant/Contract Number:  
NE0000672; SC0010152
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
ACS Sustainable Chemistry & Engineering
Additional Journal Information:
Journal Volume: 6; Journal Issue: 8; Journal ID: ISSN 2168-0485
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Chitin; Codissolution; 1-Ethyl-3-methylimidazolium acetate; Fiber extrusion; Ionic liquid; Poly(lactic acid); Tensile strength; Young’s modulus; Chitin, Codissolution, 1-Ethyl-3-methylimidazolium acetate, Fiber extrusion, Ionic liquid, Poly(lactic acid), Tensile strength, Young’s modulus

Citation Formats

Shamshina, Julia L., Zavgorodnya, Oleksandra, Berton, Paula, Chhotaray, Pratap K., Choudhary, Hemant, and Rogers, Robin D. Ionic Liquid Platform for Spinning Composite Chitin–Poly(lactic acid) Fibers. United States: N. p., 2018. Web. doi:10.1021/acssuschemeng.8b01554.
Shamshina, Julia L., Zavgorodnya, Oleksandra, Berton, Paula, Chhotaray, Pratap K., Choudhary, Hemant, & Rogers, Robin D. Ionic Liquid Platform for Spinning Composite Chitin–Poly(lactic acid) Fibers. United States. doi:10.1021/acssuschemeng.8b01554.
Shamshina, Julia L., Zavgorodnya, Oleksandra, Berton, Paula, Chhotaray, Pratap K., Choudhary, Hemant, and Rogers, Robin D. Thu . "Ionic Liquid Platform for Spinning Composite Chitin–Poly(lactic acid) Fibers". United States. doi:10.1021/acssuschemeng.8b01554. https://www.osti.gov/servlets/purl/1592738.
@article{osti_1592738,
title = {Ionic Liquid Platform for Spinning Composite Chitin–Poly(lactic acid) Fibers},
author = {Shamshina, Julia L. and Zavgorodnya, Oleksandra and Berton, Paula and Chhotaray, Pratap K. and Choudhary, Hemant and Rogers, Robin D.},
abstractNote = {In the design of stronger chitin fibers reinforced with poly(lactic acid) (PLA), during this work, an ionic-liquid-based (IL-based) approach was developed in which both polymers were codissolved in an 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) and wet-jet spun into composite fibers. Chitin, directly extracted from shrimp shell, had a solubility in the IL of 2.75 wt %, while PLA of MW 700 000 g/mol had a solubility of 49 wt %. Keeping the IL saturated in chitin, homogeneous solutions of chitin and PLA could be obtained up to 27 wt % (relative to the IL) PLA. Spinning dopes were prepared by maintaining the chitin concentration relative to the IL at 1.75 wt % and adding PLA in chitin to PLA weight ratios of 1:0.1 through 1:1 (PLA concentrations of 0.175–1.75 wt % relative to the IL). Homogeneous chitin/PLA fibers could be spun when the chitin to PLA ratio was between 1:0.1 and 1:0.3. The tensile strength and plasticity of the fibers depended on the chitin to PLA ratio with the highest plasticity (8.8% vs 3.0% for pure chitin fibers), strength (112 vs 71 MPa), and stiffness (5.9 vs 4.2 GPa) observed for fibers with a chitin to PLA ratio of 1:0.3. Studies of the fracturing surface of the fibers indicated that fracturing occurred through an initial disruption of the interactions between polymer chains, followed by complete fiber breakage. The work not only demonstrates that homogeneous composite fibers can be spun using a biopolymer and PLA additive, but also suggests a versatile platform for preparation of multiple biopolymer–PLA materials using solution processing methods.},
doi = {10.1021/acssuschemeng.8b01554},
journal = {ACS Sustainable Chemistry & Engineering},
issn = {2168-0485},
number = 8,
volume = 6,
place = {United States},
year = {2018},
month = {6}
}

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